Résultats de la recherche (28 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Pleistocene climatic changes and landscape evolution in the Kashmir Basin, India : paleopedologic and chronostratigraphic studies
  • Chronostratigraphic studies of sediments in the Negev Desert, using amino acid epimerization analysis of land snail shells
  • The name Flandrian in now used to indicate deposits of the Flandrian transgression or of the Holocene as a whole, in particular in Anglo-Saxon literature. As most geological connotations, Flandrian has changed significance and chronostratigraphic
  • , as the last chronostratigraphic member of a continuous series in the cenozoic stratigraphical sequence.
  • Age and extent of the Llopango TBJ tephra inferred from a Holocene chronostratigraphic reference section, Lago de Yojoa, Honduras
  • of the subcontinent combined with pedologic and chronostratigraphic studies shows the conditions by which peneplains are formed.
  • Further palynological and diatomological data were gathered on the stratotype section of the Middle Pleistocene Herzeele Formation. The pollen record of an important gully infilling indicated that a revision of the chronostratigraphical
  • Soppensee and draw conclusions in order to obtain a better bio- and chronostratigraphic time resolution.
  • the pollen-and-spore studies on the loss-paleosol formations of Northern Eurasia revealed a discrepancy between the boundaries of the loess-paleosol horizons and the borders of the chronostratigraphic subdivisions and the course of the reconstructed
  • The discovery of numerous volcanoes is disclosed in volcanic area in the South of Kivu lake. These volcanoes are mostly lined up on N-S faults, the direction of the rift of Central Africa. A new chronostratigraphic sequence is proposed
  • -cores, protolevallois-cores, corticol flakes together with a few handaxes| an assemblage which suggests acheulean knapping floors. These artefacts display several post knapping physical and chemical marks. At last a local chronostratigraphic skeme is put
  • , the morphogenetic characteristics of the Želivka Valley are presented and the fluvial sediments and terrace system of its river are described, including a chronostratigraphic correlation with other river terraces of the Bohemian Massif. - (EN)
  • beds that recur several times in the sequence, with dating the kurkar and hamra units, and with relating the chronostratigraphic units to global sea levels and to regional and global climatic events.
  • This paper uses a time-dependent glaciological model to produce numerical reconstructions of the late Weichselian Svalbard-Barents Sea Ice Sheet, taking account of recent geological, biological, and chronostratigraphic evidence of climatic change
  • | wood, charcoal, plant remains, mosses), with special attention to seeds, fruits and mulluscs. A biostratigraphical classification could be fitted into a chronostratigraphical scale, thanks to C datings and pollen analyses. (LW).
  • lacustrine and boggy deposits shows very distinct differences. Results of radiocarbon measurements of fossil soils in dunes should be very carefully applied to the construction of chronostratigraphic schemes.
  • referring to tectonic movements which were involved in previous publications. A chronostratigraphical model of the terraces is proposed; this shows an important upheavel of the Ardenne during the Quaternary.
  • the Late Quaternary. Hence, it is possible to confirm the Weichselian age of the intact and the reduced low terrace and to record chronostratigraphically the greatly differentiated fluvial dynamics during the Holocene. - (L'A.).
  • stratigraphic procedures, the error sources and resolution of radiocarbon dating, the basis of Lateglacial chronostratigraphic schemes, and the validity of defining boundaries on continuous curves of environmental change. A general climatostratigraphic scheme
  • The post-Miocene marine succession of the «Apricena horst» is described with the purpose to verify the chronostratigraphic constraints for the type-locality of the Pirro Nord Faunal Unit. The stratigraphic succession has been subdivided in four
  • , biological, and sedimentary records from wetland peats located near the historical boundary between brackish and freshwater marshes. Twenty-five AMS C 14 dates provide chronostratigraphic control.